Apache DeltaSpike is a suite of portable CDI Extensions intended to make application development easier when working with CDI and Java EE.
Contexts and Dependency Injection is a specification, published as:
Apache DeltaSpike is compatible with all those specification versions. Note that Apache DeltaSpike is not a CDI container itself, but a set of portable Extensions for it!
Some of the key features of Apache DeltaSpike include:
Testing support is also provided, to allow you to do low level unit testing of your CDI enabled projects.
The easiest way to get started with DeltaSpike is to use Maven or Gradle as a build tool, as described in configuring in your project
mvn clean install from the top level directory,
deltaspike to build the source code.